My 'Camera' is a microscope. I don't have it on all the time. When I am using Skype, I do not need to be reminded that a camera can not be found, but all the time that I am having a conversation on Skype the notification is there in the lower middle of the screen, encouraging me to troubleshoot the 'problem.' It keeps coming back after I dismiss it.
For some, there are privacy issues that mean they don't want to have a camera. (Oh look, my partner is walking around behind me with no/scanty clothes, to name just one).
You can put a switch in the settings to indicate that a camera is not to be used.

Hello,

When in a Skype Call on Mac, how to transfer / continue it from my iPhone or vice versa?

Can someone please let me know if there's a way to accomplish this or can this be taken as product feedback?

Mac's & iPhone's have Continuity to continue things across both devices. Can Skype utilize this feature?

If I add in a secondary phone number of mine, can I invite that number from my Mac and then continue it from my iPhone and then after connected from my iPhone, can I disconnect the call from my Mac, w/o disconnecting the entire call session with the other recipient?

When You Share Screens Audio&Video, with your Contact, there is a Unstable Interruption , as My Contact's Screen Freezes, Audio has a Echo & I get a "Poor Connection" or "Switch to Audio Only" message, also, I get what Sounds like a Busy Signal or Can't Connect Signal ... until I STOP! Screen Sharing, at which time, after 45-50 seconds the Signal Clears & Everything Returns to Normal.

There are Nights, when it Happens, once or twice, others when it Occurs more than a Dozen Times, in one 5hr, evening.

I have already Confirmed & Verified that my Connection & my Contacts, far Exceed what is needed to Run Skype & Screen Share, about 852MBps, there is NO Distortion in either of our Signals, NO Issues with our ISP Providers, NO Issues, within our Devices that would Cause such a Distruption. I have gathered Proof, DxDiag, MSINFO & a ReadOut from my ISP Provider, & has been Sent to MICROSOFT that Verify this as well.

Yet, the Issue, still Happens, each Night, for over 10 Months., there have been Past Releases of SKYPE (Desktop Version, not App Version, as App Version from the MICROSOFT Store, is Corrupted, a Initial Connection, could not be made) that Worked with NO Issues, whatsoever, which Proves, to a NO DOUBT that it is the Software itself, that is the Problem.

SKYPE Support has Told me that, it very well, could be the Software itself, Yet, they Refuse to FULLY acknowledge that, this is so.

MICROSOFT, needs to Wake Up & Put more Effort into Streamlining their Software to Work, with ANY or ALL Operating Systems and/or Devices.

and Furthermore, to STOP! Placing Blame on it's Users, & to Explore, ALL Avenues of Possible Errors or their possible Causes.